Processing Information When you use a bar code scanning app in conjunction with management software, you input data using your Android device, which feeds it into a complementary app or website.

You can scan a QR code using the camera on your smartphone, tablet, or computer. Scanning QR codes lets you easily access websites, restaurant menus, videos, and more.

Google Chrome might be the most secure web browser around. What's more, Chrome can actually make your whole computer more secure.